I have just got a new to me R4-B, it is a clean set unmodified in anyway, 
however it has an annoying crackle all the time, constant volume in the audio, 
I am sure it is the main cap but just to be sure, ideas? it is just low volume 
just like a commutator noise but in the background, it does alter volume with 
the volume controls but goes away on AM although there is a bit of hum 
detectable on AM , with the passband tuning  control altered it sounds like 
running water, most strange, all this with the antenna shorted. I am assuming 
Hayseed is the best for the replacement main can capacitor. Anything else I 
might add/change while it is apart, Looking on the web there is an Italian that 
suggests some cap changes for better audio, has anyone done this, any good? Not 
looking to do any irreversable or damaging mods, I wanted it for casual Topband 
work.
73 Max
M0GHQ
_______________________________________________
Drakelist mailing list
[email protected]
http://mailman.zerobeat.net/mailman/listinfo/drakelist

Reply via email to